NOME VIII. KOLLANITE. 



6. A detached large pebble, with a small ad- 

 herent portion of the real kollanite, or precious 

 pudding-stone. This beautiful pebble, which 

 rivals or exceeds the finest j asp-agate, is encir- 

 cled with a brown zone, followed by one of 

 crimson, the middle of a fine variegated brown, 

 sometimes inclining to yellow, bearing near the 

 centre a spot about half an inch in diameter, of 

 a bright orange inclining to scarlet. Detached 

 pebbles, agatised with red and white, and with 

 other beautiful accidents, are sometimes found 

 on Hampstead Heath, and many other places. 

 They are quite different from rolled pebbles, and 

 are often of a flattened, sometimes a kidney 

 form, like those in the kollanite. Their exterior 

 appearance is of a brownish black, with little 

 lineal indentations, as if encrusted. They are 

 called by the lapidaries English pebbles, to dis- 

 tinguish them from what they call Scotish peb* 

 bles, which are generally of an impure agate. 



7. Pebbles of various tints, but chiefly yellow 

 and brown, in a whitish cement. The singu- 

 larity of this specimen, which is about 5 inches 

 by 3, is, that a little stream, as it were, of a light 

 brown cement, and about an inch in breadth, 

 runs down the middle, bending by the side of a 

 very large pebble. In this stream the pebbles 

 are all parallel with its direction, as if conveyed 



